/*
*  Copyright 2019-2020 Zheng Jie
*
*  Licensed under the Apache License, Version 2.0 (the "License");
*  you may not use this file except in compliance with the License.
*  You may obtain a copy of the License at
*
*  http://www.apache.org/licenses/LICENSE-2.0
*
*  Unless required by applicable law or agreed to in writing, software
*  distributed under the License is distributed on an "AS IS" BASIS,
*  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*  See the License for the specific language governing permissions and
*  limitations under the License.
*/
package me.zhengjie.modules.system.service.impl;

import me.zhengjie.modules.system.domain.CourseType;
import me.zhengjie.utils.ValidationUtil;
import me.zhengjie.utils.FileUtil;
import lombok.RequiredArgsConstructor;
import me.zhengjie.modules.system.repository.CourseTypeRepository;
import me.zhengjie.modules.system.service.CourseTypeService;
import me.zhengjie.modules.system.service.dto.CourseTypeDto;
import me.zhengjie.modules.system.service.dto.CourseTypeQueryCriteria;
import me.zhengjie.modules.system.service.mapstruct.CourseTypeMapper;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import me.zhengjie.utils.PageUtil;
import me.zhengjie.utils.QueryHelp;
import java.util.List;
import java.util.Map;
import java.io.IOException;
import javax.servlet.http.HttpServletResponse;
import java.util.ArrayList;
import java.util.LinkedHashMap;

/**
* @website https://el-admin.vip
* @description 服务实现
* @author 王宇
* @date 2023-09-16
**/
@Service
@RequiredArgsConstructor
public class CourseTypeServiceImpl implements CourseTypeService {

    private final CourseTypeRepository courseTypeRepository;
    private final CourseTypeMapper courseTypeMapper;

    @Override
    public Map<String,Object> queryAll(CourseTypeQueryCriteria criteria, Pageable pageable){
        Page<CourseType> page = courseTypeRepository.findAll((root, criteriaQuery, criteriaBuilder) -> QueryHelp.getPredicate(root,criteria,criteriaBuilder),pageable);
        return PageUtil.toPage(page.map(courseTypeMapper::toDto));
    }

    @Override
    public List<CourseTypeDto> queryAll(CourseTypeQueryCriteria criteria){
        return courseTypeMapper.toDto(courseTypeRepository.findAll((root, criteriaQuery, criteriaBuilder) -> QueryHelp.getPredicate(root,criteria,criteriaBuilder)));
    }

    @Override
    @Transactional
    public CourseTypeDto findById(Long typeId) {
        CourseType courseType = courseTypeRepository.findById(typeId).orElseGet(CourseType::new);
        ValidationUtil.isNull(courseType.getTypeId(),"CourseType","typeId",typeId);
        return courseTypeMapper.toDto(courseType);
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public CourseTypeDto create(CourseType resources) {
        return courseTypeMapper.toDto(courseTypeRepository.save(resources));
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void update(CourseType resources) {
        CourseType courseType = courseTypeRepository.findById(resources.getTypeId()).orElseGet(CourseType::new);
        ValidationUtil.isNull( courseType.getTypeId(),"CourseType","id",resources.getTypeId());
        courseType.copy(resources);
        courseTypeRepository.save(courseType);
    }

    @Override
    public void deleteAll(Long[] ids) {
        for (Long typeId : ids) {
            courseTypeRepository.deleteById(typeId);
        }
    }

    @Override
    public void download(List<CourseTypeDto> all, HttpServletResponse response) throws IOException {
        List<Map<String, Object>> list = new ArrayList<>();
        for (CourseTypeDto courseType : all) {
            Map<String,Object> map = new LinkedHashMap<>();
            map.put("名称", courseType.getTypeName());
            map.put("状态0：无效，1：有效，-1：删除", courseType.getTypeStatus());
            map.put("创建时间", courseType.getCreateTime());
            map.put("更新时间", courseType.getUpdateTime());
            map.put("创建人", courseType.getCreateby());
            map.put("更新人", courseType.getUpdateby());
            map.put("展示在首页0：不展示，1：展示", courseType.getShowIndex());
            map.put("图标", courseType.getTypeIcon());
            list.add(map);
        }
        FileUtil.downloadExcel(list, response);
    }
}